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About Street-Level Analysis

This map visualizes streetscape indicators for Gdansk streets using street-view imagery analysis. We collected Google Street View images and used deep learning for image segmentation to classify urban elements.

The Indices

Green View Index (GVI)

Measures the proportion of visible vegetation in street-view imagery. Higher values indicate more greenery visible from street level.

Impervious Area Index (IAI)

Quantifies impervious surfaces (roads, pavement) visible in street views. Higher values indicate more built-up environments.

Open Space Index (OSI)

Reflects visible open, non-built, non-vegetated areas (bare ground, terrain). Higher values indicate more open space availability.

Distribution

Visible
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Mean
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Range
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Street-Level Analysis

Filter GVI Streets

Value Range 0.00 - 1.00
0.0 Poor < 0.2 Good > 0.4 1.0

Filter IAI Streets

Value Range 0.00 - 1.00
0.0 Low < 0.3 High > 0.5 1.0

Filter OSI Streets

Value Range 0.00 - 0.60
0.0 Low < 0.05 High > 0.10 0.6

Green View Index

Low High
Gray = No data
How to use: • Select an index above
• Use slider to filter streets
• Histogram updates dynamically